BQ2040_15 Datasheet, PDF (5/36 Pages) Texas Instruments – Gas Gauge IC With SMBus Interface

Not Recommended For New Designs
bq2040
Table 1. Configuration Memory Map (Continued)
Parameter Name
Charge efficiency
Full charge percentage
Digitial filter
Current integration gain
Self-discharge rate
Manufacturer data
Voltage gain1
Reserved
EDVF charging current
End of discharge voltage1
End of discharge voltage final
Full-charge capacity
∆t step
Hold-off time
EEPROM check 2
Reserved
Address
Description
0x4b Sets the high/low charge rate efficiencies
0x4c
Sets the percent at which the battery is consid-
ered fully charged
0x4d Sets the minimum charge/discharge threshold
0x4e
Programs the current integration gain to the
sense resistor value
0x4f Sets the battery’s self-discharge rate
0x50-0x55 Programs ManufacturerData (0x23)
0x56/0x57 Battery divider calibration value
0x58-0x59 Reserved
0x5a/0x5b
Sets the charge current request when the battery
voltage is less than EDVF
0x5c/0x5d Sets EDV1
0x5e/0x5f Sets EDVF
0x60/0x61 Initializes and stores FullChargeCapacity (0x10)
0x62 Sets the ∆t step for ∆T/∆t termination
0x63 Sets ∆T/∆t hold-off timer
0x64
EEPROM data integrity check byte
must = 0xb5
0x65-0x7f Reserved for future use
Length
8 bits
8 bits
8 bits
8 bits
8 bits
48 bits
16 bits
16 bits
16 bits
16 bits
16 bits
16 bits
8 bits
8 bits
8 bits
Units
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
mAh
NA
NA
NA
NA
5